Title: Phosphating composition and processes
Application Number: 85101826 Application Date: 1985.04.01
Publication Number: 1009750 Publication Date: 1987.03.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C23C22/12
Applicant(s) Name: Pyrene Chemical Services Ltd. (GB) Ridgeway, Iver, Address:
Inventor(s) Name: George L. Higgins
Attorney & Agent: LI LUOYING WU XIAONAN
Abstract:
     This invention is related to surface protection of zinc or steel and in particular, surfaces of the structures such as bridges or gantries. The composition contains 0.5 to 5 parts of zinc, 1 to 20 parts of phosphoric acid, 0.01 to 0.5 parts of cobalt and/or nickel, and an effective amount of an accelerator such as nitroguanidine, sulpho-salicylic acid or sodium nitrobenzenesulphonate.
Time: 9
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